Phages that can either replicate and cause cell lysis or can integrate their DNA into the host DNA are called

#Question id: 5675

#Unit 5. Developmental Biology

Following are the statements related to mammalian chaemotaxis:

A. During chaemotaxis, the oocyte and its accompanying cumulus cells secrete molecules that attract only uncapacitated sperm toward the egg during the last stages of sperm migration.

B. These chaemotactic compound are hormone progesterone, which is made by the cumulus cells.

C. Progesterone has been shown to bind to a receptor that activates Ca2+ channels in the cell membrane of the sperm tail, leading to sperm hyperactivity and provides directional cue.

D. Cumulus cells also secrete a substance, CRISP1, that attracts sperm and hyperactivates them through CatSper channels similar as in sea urchins.

Which of  the following statement is incorrect?

#Question id: 21000

#Unit 12. Applied Biology

#Question id: 32327

#Unit 1. Molecules and their Interaction Relevant to Biology

If these 2 reactions are happening together the what will the overall free energy of the 

#Question id: 15996

#Unit 12. Applied Biology

#Question id: 2248

#Unit 2. Cellular Organization

The movement of Na+ ions into an animal cell

a. has a positive ΔG value.                 

b. is energetically favorable.

c. is chemically favorable.                  

d. drives the export of Ca2+ in muscle cells.